Question: When was Vladimir Vasilyev appointed as head of government in the Republic of Dagestan?
Paraphrase: The Rep. of Dagestan appointed Vladimir Vasilyev as head of government on what date?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q5118 p:P6 ?s . ?s ps:P6 wd:Q4104566 . ?s pq:P580 ?value}